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Superior Proton Exchange Membrane Fuel Cell (PEMFC) Performance Using Short-Side-Chain Perfluorosulfonic Acid (PFSA) Membrane and Ionomer
Open accessAbstract
Optimization of the ionomer materials in catalyst layers (CLs) which sometimes is overlooked has been equally crucial as selection of the membranes in membrane electrode assembly (MEA) for achieving a superior performance in proton exchange membrane fuel cells (PEMFCs). Four combinations of the MEAs composed of short-side-chain (SSC) and long-side-chain (LSC) perfluorosulfonic acid (PFSA) polymers as membrane and ionomer materials have been prepared and tested under various temperatures and humidity conditions, aiming to investigate the effects of different side chain polymer in membranes and CLs on fuel cell performance. It is discovered that SSC PFSA polymer used as membrane and ionomer in CL yields better fuel cell performance than LSC PFSA polymer, especially at high temperature and low RH conditions. The MEA with the SSC PFSA employed both as a membrane and as an ionomer in cathode CL demonstrates the best cell performance amongst the investigated MEAs. Furthermore, various electrochemical diagnoses have been applied to fundamentally understand the contributions of the different resistances to the overall cell performance. It is illustrated that the charge transfer resistance (Rct) made the greatest contribution to the overall cell resistance and then membrane resistance (Rm), implying that the use of the advanced ionomer in CL could lead to more noticeable improvement in cell performance than only the substitution as the membrane.
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The SSC PFSA ionomer offers better performance than long-branched resins, i.e., LSC PFSA, especially under high-temperature and low-humidity working conditions.
“As discussed in Sect.2.2, the SSC PFSA ionomer offers better performance than long-branched resins, i.e., LSC PFSA, especially under high-temperature and low-humidity working conditions [246].”
From Recent Advances on PEM Fuel Cells: From Key Materials to Membrane Electrode Assembly (2023) · cites this paper as [246]
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Recent Advances on PEM Fuel Cells: From Key Materials to Membrane Electrode Assembly
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“PFSA, especially under high-temperature and low-humidity working conditions [246].”
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Metadata
- Authors
- Zhao, N., Shi, Z., & Girard, F.
- Affiliations
- National Research Council Canada (CA)
- Energy, Mining & Environment Research Centre, National Research Council Canada, 4250 Wesbrook Mall, Vancouver, BC V6T 1W5, Canada
- Corresponding author
- Shi, Zhiqing
- Venue
- Materials
- Publisher
- MDPI AG
- Published
- 2021-12-23
- Volume
- 15
- Issue
- 1
- Pages
- 78
- ISSN
- 1996-1944 (ISSN-L)
- PMC
- PMC8745893
- OpenAlex
- W4200255834
- Cited by
- 28
- References
- 34
- Citations by year
- 2026: 8 · 2025: 6 · 2024: 7 · 2023: 6 · 2022: 1
- FWCI
- 1.03
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- Locations
- Materials (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- NPARC (acceptedVersion, cc-by)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Topics
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Fuel Cells and Related Materials
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Electrocatalysts for Energy Conversion
- Physical Sciences › Materials Science › Materials Chemistry › Advancements in Solid Oxide Fuel Cells
- Keywords
- proton exchange membrane fuel cells, perfluorosulfonic acid membranes, catalyst layer, membrane electrode assembly, charge transfer resistance, membrane resistance, high-temperature operation, low humidity operation, fuel cell performance
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